This error typically occurs when working with Meteor.js (a JavaScript framework) and attempting to add a specific package or build plugin (addon) that is incompatible, deprecated, or blocked by the current Meteor version or security policies. The code 1211 is a common internal rejection code related to package build failures or version mismatch.
To run the Rejects addon on version 1.21.1, you must have the following base components installed: meteor rejects addon 1211
Activation: Launch Minecraft and open the Meteor GUI (default key: Right Shift) to see the new modules. Common Issues This error typically occurs when working with Meteor
Follow these solutions in order. The first solution resolves 80% of cases. Common Issues Step-by-Step Fixes for "Meteor Rejects Addon
| Action | Command |
|--------|---------|
| Update Meteor | meteor update --release 2.16 (latest stable) |
| Reset project | meteor reset |
| Reinstall npm | rm -rf node_modules && meteor npm install |
| Add with force | meteor add <addon> --allow-incompatible-update |
| Check OS compatibility | uname -a (some addons require Linux/Windows-specific binaries) |
Meteor Client requires Java 17+ and a specific Minecraft version (e.g., 1.20.4). If you are using an older Java runtime or an unsupported Minecraft build, the addon verification fails with a generic "rejects" error.